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Search: Posts Made By: kellymcdonald78
Forum: Maps, GPS, Orienteering   06-11-2016, 01:07 AM
Replies: 10
Views: 3,328
Posted By kellymcdonald78
I'd check the date on your map as magnetic...

I'd check the date on your map as magnetic declination can change surprisingly quickly depending on where you are. As of today Montreal is -14.31 degrees, but I'd need the exact long/lat of your map...
Forum: Maps, GPS, Orienteering   06-10-2016, 03:26 PM
Replies: 10
Views: 3,328
Posted By kellymcdonald78
Just remember that magnetic declination near...

Just remember that magnetic declination near Montreal is -14 vs Vancouver +13, or a 27 degree difference
Forum: Maps, GPS, Orienteering   06-10-2016, 12:41 AM
Replies: 10
Views: 3,328
Posted By kellymcdonald78
North on Google Maps is approximately true north...

North on Google Maps is approximately true north (there can be discrepancies due to the projection Google uses). The most common error is to ensure you've adjusted your declination in the right...
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